2219588381 has 4 divisors (see below), whose sum is σ = 2219741052. Its totient is φ = 2219435712.

The previous prime is 2219588369. The next prime is 2219588401. The reversal of 2219588381 is 1838859122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1271564281 + 948024100 = 35659^2 + 30790^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219588381 - 2¹⁴ = 2219571997 is a prime.

It is a super-2 number, since 2×2219588381² = 9853145162140402322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219588311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51926 + ... + 84471.

It is an arithmetic number, because the mean of its divisors is an integer number (554935263).

Almost surely, 2^2219588381 is an apocalyptic number.

It is an amenable number.

2219588381 is a deficient number, since it is larger than the sum of its proper divisors (152671).

2219588381 is a wasteful number, since it uses less digits than its factorization.

2219588381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152670.

The product of its digits is 276480, while the sum is 47.

The square root of 2219588381 is about 47112.5076916948. The cubic root of 2219588381 is about 1304.4401195825.

The spelling of 2219588381 in words is "two billion, two hundred nineteen million, five hundred eighty-eight thousand, three hundred eighty-one".